Single-Party System
Only one political party is legally permitted to hold power. No organized opposition exists.
Example: China CCP is the only legal governing party. Other parties exist but are subordinate.

Read the notes, then try the practice. It adapts as you go.When you're ready.
Session Length
~18 min
Adaptive Checks
16 questions
Transfer Probes
8
Party and electoral systems shape how citizens organize politically, how leaders are chosen, and how interests are represented. In the AP Comparative Government framework, the six core countries display a wide range of party systems -- from China single-party state to Nigeria multiparty competition.
Electoral rules determine how votes translate into seats and power, influencing everything from voter behavior to coalition formation. Interest groups and citizen organizations operate under very different conditions across democratic and authoritarian contexts, from the UK robust civil society to China state-controlled organizations.
One step at a time.
Adjust the controls and watch the concepts respond in real time.
Only one political party is legally permitted to hold power. No organized opposition exists.
Example: China CCP is the only legal governing party. Other parties exist but are subordinate.
Multiple parties exist and compete, but one party wins consistently due to structural advantages.
Example: Russia United Russia dominates through media control, resource advantages, and institutional manipulation.
Multiple parties compete genuinely for power, with realistic possibilities of alternation.
Example: Nigeria PDP, APC, and smaller parties compete. Power transferred from PDP to APC in 2015.
Electoral system where the candidate with the most votes in each constituency wins. Tends to produce two major parties.
Example: The UK uses FPTP for House of Commons elections, favoring Labour and Conservatives.
Electoral system allocating seats based on each party share of the total vote.
Example: Russia uses a mixed system with half the Duma elected by proportional representation.
Exchange of goods, services, or favors for political support. Common in developing democracies.
Example: Nigeria politicians distribute patronage to supporters in exchange for votes and loyalty.
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See how the key ideas connect. Nodes color in as you practice.
Walk through a solved problem step-by-step. Try predicting each step before revealing it.
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